Chbistian boeohees



(N0M0del.)' I S U. BORQHERS.

TELEGRAPH KEY.

'No. 307,836. Patented Nov. .11, 1884.

mun F INVENTOR WITNESSES: x1 M BY gM V A'TTORtBYS N. PETERS momumm mr, Wishing! 0.0.

, UNITED STATES PATENT OFFICE.

CHRISTIAN BOBOHERS, OF NEW YORK, N. Y.

TELEGRAPH-KEY.

SPECIFICATION forming part of Letters Patent No. 307,836, dated November 11, 1884.

' Application filed March 27, 1884. (No model.)

To all whom if; may concern:

Be it known that I, CHRISTIAN BORCIIERS, of the city, county, and State of New York, have invented certain new and useful Improvements in Telegraph-Keys, of which the following is a specification.

This invention has reference to an improved attachment to telegraph-keys,.whereby the working of the same is facilitated and a more distinct transmission of the signals obtained.

The invention consists of an auxiliary keylever that is mounted by a transverse pivotshaft in a supporting-frame secured to the table in front of the key, said auxiliary lever being provided with a Vertically-adjustable screw-post that acts on the outerend of the main key-leverl In the accompanying drawings, Figure 1 represents a side elevation, partly in section on line 00 :0, Fig. 2, of myimproved telegraphkey, and Fig. 2 is a plan of the same.

Similar letters of reference indicate corre sponding parts.

A in the drawings represents a telegraphkey of my approved construction, and A the lever of the same. An auxiliary lever, B, is mounted by atransverse pivot-shaft,b, in conical bearings of a support, C, which is permanently secured in front of the key A. The

auxiliary lever B is provided with a handle or button, B, in the same manner as the main key-lever A, and with a vertically-adjustable screw, D, having a jam-nut, d, at a point vertically above the front end of the main keylever A, the screw D being adjusted so as to rest on the handle or button of the lever A.

The main key-lever A, instead of being worked directly by the operator, is worked by the auxiliary key-lever B, the increased leverage of which facilitates the working of the key A, especially in unfavorable weathenwith less fatigue to the operator, said auxiliary lever producing, further, the clearer and more dis tinct transmission of the individual signs of a message.

The auxiliary key-lever can be applied to any key-lever now in use by simply screwing it on in front of the same. It furnishes a cheap and simple means by which thework of the telegraph-operator can be rendered easier and more accurate.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. The combination, with a telegraph-key, of an auxiliary key-lever mounted in front of the key and provided with an adjustable contact-screw vertically above the front end of the main key-lever, substantially at set forth.

2. An auxiliary lever for telegraph keys, consisting of a lever, B, mounted by a transverse pivot-shaft, b, in bearings, a support ing-frame, C, and a vertically-adj ustable screw, D, located above the frontend of the main keylever, substantially as set forth. 6 5

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

CHRISTIAN BOROHERS.

Witnesses:

PAUL GoEPnL, SIDNEY MANN. 

